The 139th Kentucky Derby

Jockey Joel Rosario celebrates after crossing the finish first on Orb during the running of the 139th Kentucky Derby horse race at Churchill Downs in Louisville, Kentucky May 4, 2013.

Jockey Joel Rosario celebrates after crossing the finish first on Orb during the running of the 139th Kentucky Derby horse race at Churchill Downs in Louisville, Kentucky May 4, 2013. (JEFF HAYNES / REUTERS)

Jockey Joel Rosario celebrates after crossing the finish first on Orb during the running of the 139th Kentucky Derby horse race at Churchill Downs in Louisville, Kentucky May 4, 2013.